HVAC PDH Promotion – Aug 2012
Automotive HVAC System HVAC Control Module Hall Switch TLE V from Battery Control Panel Hall Switch TLE 4966 LIN Bus Optional: CAN Bus Optional: VREG TLE 42xx/46xx LIN LDO TLE 8458G CAN Transceiver TLE G ) TLE G TLE 6251DS Communication Supply I/O 16/32-bit Microcontroller XC22xx 8-bit Microcontroller XC800 A-Family LS Driver Motor Driver Flap Control Bridges TLE4207G TLE4208G TLE8410x NovalithIC ™ BTN 79xxB Speed PROFET ™ BTF TEA HITFET ™ BTS 3405G BTS 3800 M M Flap #1 Flap #2 Flap #3 Hall Switch TLE 4946 Blower Motor Further High-Current Loads: Heater, A/C on, Defrost etc.
Web Links for Product Information – HVAC Bridges for flap Drivers TLE4207/TLE4208/TLE8410x drivers/channel.html?channel=db3a304312bae05f0112bdd6e44a0049 NovalithicBTN79xxB for PWM Blower drivers-novalithic™/trilith-ic/channel.html?channel=db3a304312bae05f0112bdd4f Speed Profet BTF TEA for PWM Blower 01.pdf?folderId=db3a304314dca e37155f&fileId=db3a30432ad629a6012b0a94d88d3f2e&sId=db3a ec6d390138f4a7bec12330 Hitfet Relay Drivers BTS3405/ smart-low-side-switches/channel.html?channel=ff ab681d0112ab69de XC2200 Microcontroller XC800 8 bit microcontroller
HVAC Flap DC Motor Control Flaps are driven by DC brush motors Current consumption <1A Motors can be cascaded (N+1 half-bridges required for one motor) For position detection a feedback potentiometer is used Manual HVAC can be realized without position detection Architecture used by OEMs worldwide Products: All half-bridges driver IC August 2011Copyright © Infineon Technologies All rights reserved.Page 4 Flap motor control in heating and ventilation aircondition systems
TLE84106/110EL DC Motor Flap Driver IC Description ¬6-fold / 10-fold Halfbridge DC Motor driver (R S(ON)MAX I out =0.5A, T j =150°C) ¬Short circuit limit: 1.5A (typ.) ¬Quiescent current: I S(typ) =2µA Interface : 16bit- SPI Protection / Diagnosis ¬SC, OT, OV, UV, LO / SPI status register Package : PG-SSOP-24 (exposed pad) Typical Application ¬Flap motor control in Heating & Ventilation Systems ¬DC brush motor control Description ¬6-fold / 10-fold Halfbridge DC Motor driver (R S(ON)MAX I out =0.5A, T j =150°C) ¬Short circuit limit: 1.5A (typ.) ¬Quiescent current: I S(typ) =2µA Interface : 16bit- SPI Protection / Diagnosis ¬SC, OT, OV, UV, LO / SPI status register Package : PG-SSOP-24 (exposed pad) Typical Application ¬Flap motor control in Heating & Ventilation Systems ¬DC brush motor control Benefits Small package - Scalable – Pin Compatible *)Small package - Scalable – Pin Compatible Benefits Small package - Scalable – Pin Compatible *)Small package - Scalable – Pin Compatible August 2011Copyright © Infineon Technologies All rights reserved.Page 5 TLE84106EL TLE84110EL
Page 6Copyright © Infineon Technologies All rights reserved. *) TLE84106/110EL Benefits TLE84106EL TLE6208-6G -70% 180mm 2 -> 52mm 2 3-flap motors5-flap motors Small footprint + 6- and 10-fold are pin compatible 6- and 10-fold HB are function compatible Easy to combine both drivers to drive up to 8 or 10 flap motors Save time, space and money Space Scalabiltiy Summary
TLE4207/08G Description : ¬2-fold / 4-fold half-bridge DC motor driver (Vsat total = 1.2V Iout = 0.4A) ¬Short circuit limit: 1.5A (typ.) ¬Quiescent current: I S(typ) = 20µA Interface : Standard parallel interface Protection / Diagnosis ¬SC, OT, OV, UV / Error flag (OT, OV) Package : PG-DSO-14 / PG-DSO-28 Typical Applications: ¬Flap motor control in Heating & Ventilation Systems ¬DC brush motor control Description : ¬2-fold / 4-fold half-bridge DC motor driver (Vsat total = 1.2V Iout = 0.4A) ¬Short circuit limit: 1.5A (typ.) ¬Quiescent current: I S(typ) = 20µA Interface : Standard parallel interface Protection / Diagnosis ¬SC, OT, OV, UV / Error flag (OT, OV) Package : PG-DSO-14 / PG-DSO-28 Typical Applications: ¬Flap motor control in Heating & Ventilation Systems ¬DC brush motor control Copyright © Infineon Technologies All rights reserved.Page 7 TLE4207G TLE4208G Benefits Easy to use – Scalable – Proven design Benefits Easy to use – Scalable – Proven design
Copyright © Infineon Technologies All rights reserved. CO 2 Assessment HVAC Blower Fan Control Linear controlled PWM controlled Linear controlled MOSFETs is used as variable resistor in series with DC-brush motor DC-brush motor with half bridge for PWM (8 bit µC / half-bridge / -Filter) Main benefit Reduced power losses in ECU Feasibility Available Technology, Complexity: Low Source : Continental CO 2 Benefits: Reduced Power Losses~ 80 W CO 2 -reduction~ 1.9 g/km Cost Benefit~ fuel savings and potential reduced taxes August 2011
Page 9 Copyright © Infineon Technologies All rights reserved. Optimized solution for HVAC fan control OUT BTN79xB Diagnostic Current Sense ON/OFF VS GND INH IN SR IS VSVS Enables PWM control Fuel efficiency Reduced board space System in a Package System cost optimization August 2011
Page 10 Copyright © Infineon Technologies All rights reserved. NovalithIC™ General Concept – System in a Package (SiP) Integrated Half Bridge PWM capability of up to 25 kHz combined with active freewheeling Switched mode current limitation for reduced power dissipation in over- current Adjustable slew rates for optimized EMI Driver circuit with logic level inputs fast Status flag diagnosis with fast current sense capability Over-temperature shut down with latch behavior Overvoltage lock out Under-voltage shut down Green Product (RoHS compliant) AEC Qualified Integrated Half Bridge PWM capability of up to 25 kHz combined with active freewheeling Switched mode current limitation for reduced power dissipation in over- current Adjustable slew rates for optimized EMI Driver circuit with logic level inputs fast Status flag diagnosis with fast current sense capability Over-temperature shut down with latch behavior Overvoltage lock out Under-voltage shut down Green Product (RoHS compliant) AEC Qualified D2PAK PG-TO263-7 D2PAK PG-TO263-7 August 2011
Page 11 Copyright © Infineon Technologies All rights reserved. Q Speed PROFET™ - BTF TEA Single channel 6mHigh Side Driver BASIC FEATURES 6m=> 12m Optimized for 25kHz PWM frequencies Inrush up to 60A (min.) 3.3V and 5V CMOS compatible logic inputs No need of ext. bootstrap capacitor Embedded diagnostic and protection functions DPAK (PG-TO252-5) package Green Product (RoHS compliant) TARGET APPLICATIONS Valves, coils and motors, with inrush current up to 60A Most suitable for loads driven by high PWM frequency signals TARGET APPLICATIONS Valves, coils and motors, with inrush current up to 60A Most suitable for loads driven by high PWM frequency signals Fuel pump WiperHVAC Seat Belt DPAK PG-TO252-5 in ramp-up
Page 12 Copyright © Infineon Technologies All rights reserved. Q Speed PROFET™ - BTF TEA Protective and Diagnostic functions Protective Functions Short circuit protection with latch Overload protection Thermal shutdown with latch Overvoltage protection (including load dump) Loss of ground protection Loss of VS protection (with ext. diode for charged inductive loads) Electrostatic discharge protection (ESD) Diagnostic Functions Advanced analog load current sense with defined positive offset current, enabling load diagnosis, like open load in ON state, overload Providing defined fault signal through the IS pin Open load at OFF state Short to battery Block diagram